The X1 External Power Supply is an ultra low noise, discrete and fully regulated linear power supply, delivering an ultra stable and super clean DC feed to other CH Precision products. It contains massive amounts of noise filtering as well as an additional stage of power supply regulation that works in conjunction with the on-board regulation built into the connected unit, in order to increase DC stability and further reduce noise to a vanishingly low level.
X1 External Power Supply
When you listen to your audio system, you are quite literally listening to your AC supply. Just as the performance of a car depends on the type and quality of fuel you run it on, so your audio system’s performance can be undermined by a poor quality electrical supply and, within your system, no components are more vulnerable to compromise than the digital and low-level units.
This is one area of technology where size really matters – just not necessarily in the way that you might assume.
The critical circuits in your audio system run on DC voltage. The level of that voltage needs to be precise and the level of residual noise it carries needs to be as low as possible.
All CH Precision components contain sophisticated power supplies with extensive local DC regulation. But this is one field in which you can never put too much protection between the signal path and the noisy, RF polluted and mechanically intrusive AC supply.
The X1 External Power Supply is an ultra low noise, discrete and fully regulated linear power supply, delivering an ultra stable and super clean DC feed to other CH Precision products. It contains massive amounts of noise filtering as well as an additional stage of power supply regulation that works in conjunction with the on-board regulation built into the connected unit, in order to increase DC stability and further reduce noise to a vanishingly low level. Compatible with the D1 CD/SACD Transport, C1/C1 Mono DAC/Controllers, P1 Phono-Stage and L1 Line-Stage, the X1 External Power Supply will dramatically improve the already impressive performance of these products, reducing system noise floor, increasing dynamic range, resolution and speed of response, transparency, detail and above all, musicality. Adding X1s to your system will bring intimacy, presence, tonal colour and an unmistakable sense of life to your recordings – and the more X1s you add, the better it will get.
Each X1 can be configured to run either one or (with a second, optional output card) two low-level products. But the X1 is also a crucial element in CH Precision’s scalable system topology, so that as you move each product towards a true dual-mono signal chassis configuration, you can use one X1 output or a dedicated X1 for each unit, delivering ultimate channel separation and musical performance.
- dedicated mains filter on each transformer primary, medical-grade type with ultra-low leakage current
- two oversized power transformers dedicated to the digital and analog sections
- cascaded power supply regulation stages for superior noise rejection
- allows the connected machine’s mains transformer to remain turned off for added noise immunity
- preserved galvanic isolation between the analog and digital sections of the connected machine(s)
A second regulation board can be inserted into the unit to allow the use of a single X1 with two CH Precision products.
The X1 is entirely remotely operated from the connected machine(s), and does not need to be manually switched on or off. Once placed in standby mode and connected, the supplied unit(s) are turning the X1 on or off automatically
“Adding the X1 is, quite frankly, a no-brainer. Given the price of a P1 or L1 and the difference wrought to their performance by the X1, at its relatively modest cost, it should be an automatic add-on or urgent upgrade. The drop in the noise floor that results from its use has profound musical implications, both in dynamic and expressive terms. Performers have greater presence, their playing greater agility. The soundstage expands and snaps into focus and the instruments in the orchestra, or voices singing, are better separated, both spatially and tonally, the latter a function of a wider and better-differentiated tonal palette.” ROY GREGORY, THEAUDIOBEAT.COM (read in full here)
“So yes, The CH Precision X1 does make a difference. A big one! Sadly once you try out X1 along with the P1, there is no going back”MATEJ ISAK, MONO AND STEREO (read in full here)
|Back panel||M23 connector matching the machine’s external power supply connector|
|Cable||2 meter cable with M23 connectors on both ends|
|Digital supplies||Over- and under-voltage rails check Over-current monitoring|
|Analogue supplies||Over- and under-voltage rails check Over-current monitoring|
|Auto On/Off||Remotely operated from the connected machine(s)|
|Display||256×64 pixels white PMOLED|
|Mains operation||Selectable 100V, 115, 230V AC, 47-63Hz|
|Fuses value and location|| Standby fuse (white holder): 250mA T (230V AC), 500mA T (100V AC, 115V AC)
Main fuse (black holder): 2.5A T (230V AC), 5A T (100V AC, 115V AC)
|Power supply consumption||<1W (standby), up to 200W in operation|
|Dimensions/Weight||440 x 440 x 133mm (W x D x H), 25kg|
Upgrades & Accessories